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Oil and Natural Gas Properties | 3 Months Ended
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Dec. 31, 2021
Extractive Industries [Abstract] |
Oil and Natural Gas Properties | Oil and Natural Gas Properties Oil and natural gas properties are summarized below:
| December 31, 2021 |  | September 30, 2021
| (In thousands)
Proved | $ | 421,779 |  |  | $ | 402,165 |
Unproved | 18,839 |  |  | 20,557 |
Work-in-progress | 13,534 |  |  | 11,411 |
| 454,152 |  |  | 434,133 |
Accumulated depletion and amortization | (95,021) |  |  | (88,336) |
Total oil and natural gas properties, net | $ | 359,131 |  |  | $ | 345,797 |
At December 31, 2021 and September 30, 2021, the Company had one exploratory well drilled but uncompleted that was included in work-in-progress with associated well costs of $3.7 million for both periods. At December 31, 2021, the Company had one exploratory well with costs of $3.7 million that has been capitalized for greater than one year but less than two years. The Company is evaluating completion methods for this exploratory well. Depletion and amortization expense for proved oil and natural gas properties was $6.7 million and $5.9 million for the three months ended December 31, 2021 and 2020, respectively. The Company incurred $0.6 million and $0.4 million of exploration costs, which primarily related to the expiration of oil and natural gas leases for the three months ended December 31, 2021 and 2020, respectively.

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- Definition The entire disclosure for properties used in normal conduct of oil and gas exploration and producing operations. This disclosure may include property accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -URI http://asc.fasb.org/subtopic&trid=2145654 + Details
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